Elmo Rietschle 2FC4...-1CB - Manual (Page 67)

Technical data 9
© Gardner Denver Deutschland GmbH 67 / 74 05.2014 · 610.00260.40.000
Derating due to installation altitude
The following applies to all drive controllers:
▪ In S1 mode, no power reduction is required up to 1,000 m above sea level.
▪ In the range from 1,000 m up to and including 2000 m, power reduction of 1%
is required for every 100 m installation altitude. An overvoltage category 3 is
observed!
▪ In the range from 2,000 m up to and including 4,000 m, the overvoltage cate-
gory 2 must be observed due to the lower air pressure!
To comply with the overvoltage category:
▪ an external surge protector should be used in the mains supply line to the
drive controller.
▪ the input voltage should be reduced.
Please contact the manufacturer.
The respective max. output values can be defined, based on the following charac-
teristic curves.
Derating of the maximum output current due to the installation altitude
Derating of the maximum input voltage due to the installation altitude
9.2.2